Abstract
In the tropics, high temperatures and nutrient inaccessibility are often the most limiting factors affecting plant growth and final crop yield. However, it remain incomprehensible the actual impact of simultaneous interaction of prior heat stress and nutrient addition on growth and yield of cowpea plant, knowing that cowpea plant is an important grain legumes for over 200 million people in dry savanna of tropical Africa. In this study, the effect of interaction between prior heat stress and nutrient addition on growth and yield of cowpea plant was carried out in a randomized pot experiment at Obafemi Awolowo University, Ile-Ife, Nigeria. Cowpea seedlings were exposed to prior heat stress of 40°C a week after germination and different level of nutrient addition. The result obtained from the study showed that there was no significant (p<0.05) difference in the interactive effect of nutrient addition and prior heat stress on the shoot height of cowpea in most of the treatments compared to control, except in NNH3 (200 ml of the nutrient solution on daily basis and 3 h of prior heat stress) and N5H6 (200 ml of nutrient in every five days and six hours of prior heat stress). The shoot height of N5H6 was significantly higher (41.17) than NNH3 (20.26 cm). Cowpea plant subjected to only water with no prior heat stress had the highest leaf dry weight (2.44 g), while the cowpea plant under the interactive effect of nutrient supplied at every five days and six hours of prior heat stress had the highest shoot dry weight (2.63 g). The feedback of cowpea plant to interactive effect of prior heat stress and nutrient addition indicated that Longer period of prior heat stress had better advantages on growth parameter cowpea plant. However, neither prior heat stress nor nutrients addition had significant benefit on the leaf yield of cowpea, the interaction of the two significantly benefit shoot biomass and pod number of Cowpea plant. Key words: Cowpea, growth, nutrient. heat, nodule, stress, treatment, yield.
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Claims 6
Claim · model-written summary
Most heat and nutrient combinations did not significantly differ from the control in cowpea shoot height.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- interactive effect of nutrient addition and prior heat stresse0
- Outcome
- shoot heighte0
- Direction
- no significant (p<0.05) differencee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant (p<0.05) difference in the interactive effect of nutrient addition and prior heat stress on the shoot height of cowpea in most of the treatments compared to control”
Claim · model-written summary
N5H6 had significantly greater shoot height, 41.17, than NNH3 at 20.26 cm.
- Taxon
- CowpeaVigna unguiculatat0
- Treatment
- N5H6e0
- Outcome
- shoot heighte0
- Direction
- highere0
- Value
- 41.17e0
- Qualifier
- 20.26 cme0
- Comparator
- NNH3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot height of N5H6 was significantly higher (41.17) than NNH3 (20.26 cm)”
t0“Cowpea”
Claim · model-written summary
Water without prior heat stress yielded the highest leaf dry weight, 2.44 g.
- Taxon
- CowpeaVigna unguiculatat0
- Treatment
- only water with no prior heat stresse0
- Outcome
- leaf dry weighte0
- Direction
- higheste0
- Value
- 2.44 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only water with no prior heat stress had the highest leaf dry weight (2.44 g)”
t0“Cowpea”
Claim · model-written summary
Nutrient supply every five days with six hours of prior heat stress yielded the highest shoot dry weight, 2.63 g.
- Taxon
- CowpeaVigna unguiculatat0
- Treatment
- nutrient supplied at every five days and six hours of prior heat stresse0
- Outcome
- shoot dry weighte0
- Direction
- higheste0
- Value
- 2.63 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutrient supplied at every five days and six hours of prior heat stress had the highest shoot dry weight (2.63 g)”
t0“Cowpea”
Claim · model-written summary
Neither prior heat stress nor nutrient addition significantly benefited cowpea leaf yield.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- prior heat stresse0
- Outcome
- leaf yielde0
- Direction
- neithere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“neither prior heat stress nor nutrients addition had significant benefit on the leaf yield of cowpea”
Claim · model-written summary
The interaction of prior heat stress and nutrient addition significantly benefited cowpea shoot biomass and pod number.
- Taxon
- CowpeaVigna unguiculatae0
- Treatment
- interaction of the twoe0
- Outcome
- shoot biomass and pod numbere0
- Direction
- benefite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the interaction of the two significantly benefit shoot biomass and pod number of Cowpea plant”
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See all 8 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.